Use the Table of Integrals to Evaluate the Integral $$\int \frac { x ^ { 2 } } { \sqrt { x ^ { 6 } - 4 } } d x$$

Use the Table of Integrals to evaluate the integral.
$$\int \frac { x ^ { 2 } } { \sqrt { x ^ { 6 } - 4 } } d x$$